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https://github.com/MarlinFirmware/Marlin.git
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🍻 Preliminary fix for Max31865 SPI (#22682)
Co-authored-by: Scott Lahteine <thinkyhead@users.noreply.github.com>
This commit is contained in:
Jin
GitHub
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27220f0944
@ -92,6 +92,12 @@ void calibrate_delay_loop();
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#define DELAY_CYCLES(X) do { SmartDelay<IS_CONSTEXPR(X), IS_CONSTEXPR(X) ? X : 0> _smrtdly_X(X); } while(0)
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#if GCC_VERSION <= 70000
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#define DELAY_CYCLES_VAR(X) DelayCycleFnc(X)
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#else
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#define DELAY_CYCLES_VAR DELAY_CYCLES
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#endif
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// For delay in microseconds, no smart delay selection is required, directly call the delay function
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// Teensy compiler is too old and does not accept smart delay compile-time / run-time selection correctly
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#define DELAY_US(x) DelayCycleFnc((x) * ((F_CPU) / 1000000UL))
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@ -200,9 +206,12 @@ void calibrate_delay_loop();
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#endif
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#if ENABLED(DELAY_NS_ROUND_DOWN)
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#define DELAY_NS(x) DELAY_CYCLES((x) * ((F_CPU) / 1000000UL) / 1000UL) // floor
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#define _NS_TO_CYCLES(x) ( (x) * ((F_CPU) / 1000000UL) / 1000UL) // floor
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#elif ENABLED(DELAY_NS_ROUND_CLOSEST)
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#define DELAY_NS(x) DELAY_CYCLES(((x) * ((F_CPU) / 1000000UL) + 500) / 1000UL) // round
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#define _NS_TO_CYCLES(x) (((x) * ((F_CPU) / 1000000UL) + 500) / 1000UL) // round
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#else
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#define DELAY_NS(x) DELAY_CYCLES(((x) * ((F_CPU) / 1000000UL) + 999) / 1000UL) // "ceil"
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#define _NS_TO_CYCLES(x) (((x) * ((F_CPU) / 1000000UL) + 999) / 1000UL) // "ceil"
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#endif
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#define DELAY_NS(x) DELAY_CYCLES(_NS_TO_CYCLES(x))
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#define DELAY_NS_VAR(x) DELAY_CYCLES_VAR(_NS_TO_CYCLES(x))
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@ -39,7 +39,7 @@
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#define DISABLED(V...) DO(DIS,&&,V)
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#undef _BV
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#define _BV(b) (1UL << (b))
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#define _BV(b) (1 << (b))
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#ifndef SBI
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#define SBI(A,B) (A |= _BV(B))
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#endif
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@ -48,20 +48,17 @@
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#if HAS_MAX31865 && !USE_ADAFRUIT_MAX31865
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//#include <SoftwareSPI.h> // TODO: switch to SPIclass/SoftSPI
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#include "MAX31865.h"
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#ifdef TARGET_LPC1768
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#include <SoftwareSPI.h>
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#endif
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// The maximum speed the MAX31865 can do is 5 MHz
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SPISettings MAX31865::spiConfig = SPISettings(
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#if defined(TARGET_LPC1768)
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SPI_QUARTER_SPEED
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#elif defined(ARDUINO_ARCH_STM32)
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SPI_CLOCK_DIV4
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#else
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500000
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#endif
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, MSBFIRST
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, SPI_MODE_1 // CPOL0 CPHA1
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TERN(TARGET_LPC1768, SPI_QUARTER_SPEED, TERN(ARDUINO_ARCH_STM32, SPI_CLOCK_DIV4, 500000)),
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MSBFIRST,
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SPI_MODE1 // CPOL0 CPHA1
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);
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#ifndef LARGE_PINMAP
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@ -93,7 +90,7 @@ SPISettings MAX31865::spiConfig = SPISettings(
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_sclk = _miso = _mosi = -1;
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}
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#else
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#else // LARGE_PINMAP
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/**
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* Create the interface object using software (bitbang) SPI for PIN values
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@ -106,9 +103,7 @@ SPISettings MAX31865::spiConfig = SPISettings(
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* @param spi_clk the SPI clock pin to use
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* @param pin_mapping set to 1 for positive pin values
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*/
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MAX31865::MAX31865(uint32_t spi_cs, uint32_t spi_mosi,
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uint32_t spi_miso, uint32_t spi_clk,
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uint8_t pin_mapping) {
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MAX31865::MAX31865(uint32_t spi_cs, uint32_t spi_mosi, uint32_t spi_miso, uint32_t spi_clk, uint8_t pin_mapping) {
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_cs = spi_cs;
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_mosi = spi_mosi;
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_miso = spi_miso;
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@ -130,14 +125,12 @@ SPISettings MAX31865::spiConfig = SPISettings(
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#endif // LARGE_PINMAP
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/**
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*
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* Instance & Class methods
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*
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*/
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/**
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* Initialize the SPI interface and set the number of RTD wires used
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*
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@ -152,22 +145,13 @@ void MAX31865::begin(max31865_numwires_t wires, float zero, float ref) {
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OUT_WRITE(_cs, HIGH);
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if (_sclk != TERN(LARGE_PINMAP, -1UL, -1)) {
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// Define pin modes for Software SPI
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#ifdef MAX31865_DEBUG
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SERIAL_ECHOLN("Initializing MAX31865 Software SPI");
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#endif
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OUT_WRITE(_sclk, LOW);
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SET_OUTPUT(_mosi);
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SET_INPUT(_miso);
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softSpiBegin(SPI_QUARTER_SPEED); // Define pin modes for Software SPI
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}
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else {
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// Start and configure hardware SPI
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#ifdef MAX31865_DEBUG
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SERIAL_ECHOLN("Initializing MAX31865 Hardware SPI");
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SERIAL_ECHOLNPGM("Initializing MAX31865 Hardware SPI");
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#endif
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SPI.begin();
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SPI.begin(); // Start and configure hardware SPI
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}
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setWires(wires);
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@ -176,25 +160,15 @@ void MAX31865::begin(max31865_numwires_t wires, float zero, float ref) {
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clearFault();
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#ifdef MAX31865_DEBUG_SPI
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#ifndef LARGE_PINMAP
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SERIAL_ECHOLNPGM(
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"Regular begin call with _cs: ", _cs,
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" _miso: ", _miso,
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" _sclk: ", _sclk,
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" _mosi: ", _mosi
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);
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#else
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SERIAL_ECHOLNPGM(
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"LARGE_PINMAP begin call with _cs: ", _cs,
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" _miso: ", _miso,
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" _sclk: ", _sclk,
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" _mosi: ", _mosi
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);
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#endif // LARGE_PINMAP
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SERIAL_ECHOLNPGM("config: ", readRegister8(MAX31856_CONFIG_REG));
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SERIAL_EOL();
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#endif // MAX31865_DEBUG_SPI
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SERIAL_ECHOLNPGM(
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TERN(LARGE_PINMAP, "LARGE_PINMAP", "Regular")
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" begin call with _cs: ", _cs,
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" _miso: ", _miso,
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" _sclk: ", _sclk,
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" _mosi: ", _mosi,
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" config: ", readRegister8(MAX31856_CONFIG_REG)
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);
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#endif
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}
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/**
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@ -371,7 +345,6 @@ float MAX31865::temperature(float Rrtd) {
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// private:
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//
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/**
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* Set a value in the configuration register.
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*
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@ -432,10 +405,15 @@ void MAX31865::readRegisterN(uint8_t addr, uint8_t buffer[], uint8_t n) {
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WRITE(_sclk, LOW);
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WRITE(_cs, LOW);
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spixfer(addr);
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#ifdef TARGET_LPC1768
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DELAY_CYCLES(_spi_speed);
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#endif
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spiTransfer(addr);
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while (n--) {
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buffer[0] = spixfer(0xFF);
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buffer[0] = spiTransfer(0xFF);
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#ifdef MAX31865_DEBUG_SPI
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SERIAL_ECHOLNPGM("buffer read ", n, " data: ", buffer[0]);
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#endif
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@ -462,8 +440,12 @@ void MAX31865::writeRegister8(uint8_t addr, uint8_t data) {
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WRITE(_cs, LOW);
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spixfer(addr | 0x80); // make sure top bit is set
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spixfer(data);
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#ifdef TARGET_LPC1768
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DELAY_CYCLES(_spi_speed);
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#endif
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spiTransfer(addr | 0x80); // make sure top bit is set
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spiTransfer(data);
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if (_sclk == TERN(LARGE_PINMAP, -1UL, -1))
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SPI.endTransaction();
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@ -480,21 +462,38 @@ void MAX31865::writeRegister8(uint8_t addr, uint8_t data) {
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* @param x an 8-bit chunk of data to write
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* @return the 8-bit response
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*/
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uint8_t MAX31865::spixfer(uint8_t x) {
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uint8_t MAX31865::spiTransfer(uint8_t x) {
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if (_sclk == TERN(LARGE_PINMAP, -1UL, -1))
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return SPI.transfer(x);
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uint8_t reply = 0;
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for (int i = 7; i >= 0; i--) {
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reply <<= 1;
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WRITE(_sclk, HIGH);
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WRITE(_mosi, x & (1 << i));
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WRITE(_sclk, LOW);
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if (READ(_miso))
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reply |= 1;
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}
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#ifdef TARGET_LPC1768
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return swSpiTransfer(x, _spi_speed, _sclk, _miso, _mosi);
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#else
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uint8_t reply = 0;
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for (int i = 7; i >= 0; i--) {
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WRITE(_sclk, HIGH); DELAY_NS_VAR(_spi_delay);
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reply <<= 1;
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WRITE(_mosi, x & _BV(i)); DELAY_NS_VAR(_spi_delay);
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if (READ(_miso)) reply |= 1;
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WRITE(_sclk, LOW); DELAY_NS_VAR(_spi_delay);
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}
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return reply;
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#endif
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}
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return reply;
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void MAX31865::softSpiBegin(const uint8_t spi_speed) {
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#ifdef MAX31865_DEBUG
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SERIAL_ECHOLNPGM("Initializing MAX31865 Software SPI");
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#endif
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#ifdef TARGET_LPC1768
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swSpiBegin(_sclk, _miso, _mosi);
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_spi_speed = swSpiInit(spi_speed, _sclk, _mosi);
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#else
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_spi_delay = (100UL << spi_speed) / 3; // Calculate delay in ns. Top speed is ~10MHz, or 100ns delay between bits.
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OUT_WRITE(_sclk, LOW);
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SET_OUTPUT(_mosi);
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SET_INPUT(_miso);
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#endif
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}
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#endif // HAS_MAX31865 && !USE_ADAFRUIT_MAX31865
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@ -90,6 +90,13 @@ private:
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static SPISettings spiConfig;
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TERN(LARGE_PINMAP, uint32_t, uint8_t) _sclk, _miso, _mosi, _cs;
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#ifdef TARGET_LPC1768
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uint8_t _spi_speed;
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#else
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uint16_t _spi_delay;
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#endif
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float Rzero, Rref;
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void setConfig(uint8_t config, bool enable);
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@ -99,7 +106,9 @@ private:
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uint16_t readRegister16(uint8_t addr);
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void writeRegister8(uint8_t addr, uint8_t reg);
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uint8_t spixfer(uint8_t addr);
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uint8_t spiTransfer(uint8_t addr);
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void softSpiBegin(const uint8_t spi_speed);
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public:
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#ifdef LARGE_PINMAP
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@ -14,11 +14,12 @@ exec_test $1 $2 "Azteeg X5GT Example Configuration" "$3"
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restore_configs
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opt_set MOTHERBOARD BOARD_SMOOTHIEBOARD \
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EXTRUDERS 2 TEMP_SENSOR_1 -1 TEMP_SENSOR_BED 5 \
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EXTRUDERS 2 TEMP_SENSOR_0 -5 TEMP_SENSOR_1 -1 TEMP_SENSOR_BED 5 TEMP_0_CS_PIN P1_29 \
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GRID_MAX_POINTS_X 16 \
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NOZZLE_CLEAN_START_POINT "{ { 10, 10, 3 }, { 10, 10, 3 } }" \
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NOZZLE_CLEAN_END_POINT "{ { 10, 20, 3 }, { 10, 20, 3 } }"
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opt_enable TFTGLCD_PANEL_SPI SDSUPPORT ADAPTIVE_FAN_SLOWING NO_FAN_SLOWING_IN_PID_TUNING \
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MAX31865_SENSOR_OHMS_0 MAX31865_CALIBRATION_OHMS_0 \
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FIX_MOUNTED_PROBE AUTO_BED_LEVELING_BILINEAR G29_RETRY_AND_RECOVER Z_MIN_PROBE_REPEATABILITY_TEST DEBUG_LEVELING_FEATURE \
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BABYSTEPPING BABYSTEP_XY BABYSTEP_ZPROBE_OFFSET LEVEL_CORNERS_USE_PROBE LEVEL_CORNERS_VERIFY_RAISED \
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PRINTCOUNTER NOZZLE_PARK_FEATURE NOZZLE_CLEAN_FEATURE SLOW_PWM_HEATERS PIDTEMPBED EEPROM_SETTINGS INCH_MODE_SUPPORT TEMPERATURE_UNITS_SUPPORT \
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@ -15,12 +15,13 @@ exec_test $1 $2 "Teensy4.1 with default config" "$3"
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#
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restore_configs
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opt_set MOTHERBOARD BOARD_TEENSY41 \
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EXTRUDERS 2 TEMP_SENSOR_0 1 TEMP_SENSOR_1 5 TEMP_SENSOR_BED 1 \
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EXTRUDERS 2 TEMP_SENSOR_0 -5 TEMP_SENSOR_1 5 TEMP_SENSOR_BED 1 TEMP_0_CS_PIN 23 \
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I2C_SLAVE_ADDRESS 63 \
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GRID_MAX_POINTS_X 16 \
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NOZZLE_CLEAN_START_POINT "{ { 10, 10, 3 }, { 10, 10, 3 } }" \
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NOZZLE_CLEAN_END_POINT "{ { 10, 20, 3 }, { 10, 20, 3 } }"
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opt_enable EXTENSIBLE_UI LCD_INFO_MENU SDSUPPORT SDCARD_SORT_ALPHA \
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opt_enable MAX31865_SENSOR_OHMS_0 MAX31865_CALIBRATION_OHMS_0 \
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EXTENSIBLE_UI LCD_INFO_MENU SDSUPPORT SDCARD_SORT_ALPHA \
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FILAMENT_LCD_DISPLAY CALIBRATION_GCODE BAUD_RATE_GCODE \
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FIX_MOUNTED_PROBE Z_SAFE_HOMING AUTO_BED_LEVELING_BILINEAR Z_MIN_PROBE_REPEATABILITY_TEST DEBUG_LEVELING_FEATURE \
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BABYSTEPPING BABYSTEP_XY BABYSTEP_ZPROBE_OFFSET \
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